CN106654029B - A kind of organic light emitting display panel and device - Google Patents
A kind of organic light emitting display panel and device Download PDFInfo
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- CN106654029B CN106654029B CN201611152979.XA CN201611152979A CN106654029B CN 106654029 B CN106654029 B CN 106654029B CN 201611152979 A CN201611152979 A CN 201611152979A CN 106654029 B CN106654029 B CN 106654029B
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- 229910052769 Ytterbium Inorganic materials 0.000 claims abstract description 36
- NAWDYIZEMPQZHO-UHFFFAOYSA-N ytterbium Chemical compound [Yb] NAWDYIZEMPQZHO-UHFFFAOYSA-N 0.000 claims abstract description 36
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- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 claims description 3
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Abstract
The embodiment of the invention discloses a kind of organic light emitting display panel and device, which includes：The first electrode and second electrode being stacked, the first electrode and/or the second electrode are light extraction lateral electrode；Organic luminous layer, between the first electrode and the second electrode；Electron transfer layer, between the organic luminous layer and the second electrode, wherein the electron transfer layer includes ytterbium, and volume fraction≤3% of the ytterbium；Light coupling layer is located at the side that the light extraction lateral electrode deviates from the organic luminous layer.The interface energy barrier between organic light emitting display panel electron transfer layer and cathode can be reduced using technical solution of the embodiment of the present invention, electron injection ability is improved, improves the light penetration of organic light emitting display panel and the purpose of organic light emitting display panel performance.
Description
Technical field
The present embodiments relate to organic light emitting display technology more particularly to a kind of organic light emitting display panel and devices.
Background technology
Organic light emitting display (Organic light Emitting Display) is not required to backlight, right since it has
Than spending the technological merits such as high, thickness is thin, visual angle is wide, reaction speed is fast, have become one of the emphasis direction of display industry development.
Existing organic light emitting display panel includes：Cathode, electron transfer layer, luminescent layer, hole transmission layer, anode and base
Plate.When work, apply a bias voltage between the anode and cathode of organic light emitting display panel, hole and electronics break through interface
Energy barrier is migrated from hole transmission layer and electron transfer layer to luminescent layer respectively, and on the light-emitting layer, compound generate of electrons and holes is swashed
Son, exciton is unstable, gives off energy, and transfers energy to the molecule of organic luminescent substance in luminescent layer, it is made to jump from ground state
Adjourn excitation state.Excitation state is very unstable, and excited molecule returns to ground state from excitation state, radiation transistion and generate luminescence phenomenon.
In organic light emitting display panel, the height of interface energy barrier determines the quantity of injection carrier, has between organic material and electrode
The brightness of machine light emitting display panel and efficiency.But in present organic light emitting display panel, due to electron transfer layer and cathode
Between interface energy barrier it is excessively high, the injectability of electronics is relatively low, this will make the performance of organic light emitting display panel poor.
Invention content
A kind of organic light emitting display panel of present invention offer and device, are reduced with realizing between electron transfer layer and cathode
Interface energy barrier improves the purpose of organic light emitting display panel performance.
In a first aspect, an embodiment of the present invention provides a kind of organic light emitting display panel, the organic light emitting display panel packet
It includes：
The first electrode and second electrode being stacked, the first electrode and/or the second electrode are light emission side electricity
Pole；
Organic luminous layer, between the first electrode and the second electrode；
Electron transfer layer, between the organic luminous layer and the second electrode, wherein the electron transfer layer packet
Containing ytterbium, and volume fraction≤3% of the ytterbium；
Light coupling layer is located at the side that the light extraction lateral electrode deviates from the organic luminous layer.
Second aspect, the embodiment of the present invention additionally provide a kind of organic light-emitting display device, the organic light-emitting display device
Including any one organic light emitting display panel provided in an embodiment of the present invention.
The embodiment of the present invention in electron transfer layer by adulterating ytterbium, and volume fraction≤3% of ytterbium, and solving existing has
Interface energy barrier in machine light emitting display panel between electron transfer layer and cathode is excessively high, and organic light emitting display panel performance is low to ask
Topic realizes the interface energy barrier reduced between organic light emitting display panel electron transfer layer and cathode, improves electron injection ability,
And the purpose of organic light emitting display panel performance.In addition the embodiment of the present invention in organic light emitting display panel by adding light
Coupling layer can effectively improve the light penetration of organic light emitting display panel, can further increase organic light emitting display face
The performance of plate.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of organic light emitting display panel provided in an embodiment of the present invention；
Fig. 2 a- Fig. 2 d are organic light emitting display panel provided in an embodiment of the present invention and existing organic light emitting display panel
Performance parameter comparison diagram；
Fig. 3 a- Fig. 3 c are the performance parameter comparison diagram of organic light emitting display panel provided in an embodiment of the present invention；
Fig. 4 a are the refractive index of light coupling layer with the variation relation figure of the light coupling layer thickness；
Fig. 4 b are variation relation figure of the light coupling layer extinction coefficient with the light coupling layer thickness；
Fig. 5 is that the light penetration of organic light emitting display panel provided by the invention is closed with the variation of the thickness of light coupling layer
System's figure；
The performance parameter comparison diagram of Fig. 6 a and Fig. 6 b organic light emitting display panels provided in an embodiment of the present invention；
Fig. 7 is the structural schematic diagram of another organic light emitting display panel provided in an embodiment of the present invention；
Fig. 8 is the structural schematic diagram of another organic light emitting display panel provided in an embodiment of the present invention；
Fig. 9 is the structural schematic diagram of another organic light emitting display panel provided in an embodiment of the present invention；
Figure 10 is the structural schematic diagram of another organic light emitting display panel provided in an embodiment of the present invention；
Figure 11 is a kind of structural schematic diagram of organic light-emitting display device provided in an embodiment of the present invention.
Specific implementation mode
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limitation of the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
Fig. 1 is a kind of structural schematic diagram of organic light emitting display panel provided in an embodiment of the present invention.Referring to Fig. 1, this has
Machine light emitting display panel includes：The first electrode 11 and second electrode 12 being stacked, first electrode 11 and/or second electrode 12
For light extraction lateral electrode (in Fig. 1 illustratively only with second electrode 12 be light extraction lateral electrode)；Organic luminous layer 13 is located at the first electricity
Between pole 11 and second electrode 12；Electron transfer layer 14, between organic luminous layer 13 and second electrode 12, wherein electronics
Transport layer 14 includes ytterbium (Yb), and volume fraction≤3% of ytterbium；And light coupling layer 20, it is located at light extraction lateral electrode (second electrode
12) deviate from the side of organic luminous layer 13.First electrode 11 is anode, and second electrode 12 is cathode.
According to FN tunneling models (Fowler-Nordheim tunneling model), it is known that, electron transfer layer 14 is set
Including ytterbium can reduce the interface energy barrier between electron transfer layer 14 and second electrode 12.
Since electron transfer layer 14 does not include ytterbium in existing organic light emitting display panel, two organic light emissions are made respectively
The local device of display panel, wherein electron transfer layer 14 does not include ytterbium in first device B, electronics passes in second device A
Defeated layer 14 includes ytterbium, is studied the electron injection ability of two devices, result is as shown in Figure 2 a.In Fig. 2 a, horizontal axis table
Show that the current density, J of device, unit are milliampere (mA/cm every square centimeter2), the longitudinal axis indicates the voltage U of device, and unit is volt
(V).Referring to Fig. 2 a, at same current density J, the voltage U of second device A is more much lower than the voltage U of the first device B,
This illustrates that electron transfer layer 14, which is arranged, to be contributed positively to reduce interface energy barrier comprising ytterbium, is conducive to the injection of electronics.
Fig. 2 b-2d are organic light emitting display panel provided in an embodiment of the present invention and existing organic light emitting display panel
Performance curve comparison diagram.Wherein, D indicates that organic light emitting display panel provided in an embodiment of the present invention, C indicate existing organic hair
Light display panel, in existing organic light emitting display panel C, electron transfer layer 14 does not include ytterbium.
In Fig. 2 b, horizontal axis indicates that the current density, J of organic light emitting display panel, unit are milliampere (mA/ every square centimeter
cm2), the longitudinal axis indicates that the bias voltage U applied in organic light emitting display panel, unit are volt (V).It can be sent out from Fig. 2 b
Existing, under identical current density, J, the bias voltage U ratios that organic light emitting display panel D provided in an embodiment of the present invention needs are existing
Some required bias voltage U of organic light emitting display panel C are much lower.This illustrates that it includes that ytterbium is certain that electron transfer layer 14, which is arranged,
Help to reduce the interface energy barrier between electron transfer layer 14 and second electrode 12 (i.e. cathode), be conducive to from 12 note of second electrode
Enter more electronics, promotes carrier balance in organic light emitting display panel, and then reduce the work of organic light emitting display panel
Voltage (i.e. bias voltage U).
In Fig. 2 c, horizontal axis indicates that the current density, J of organic light emitting display panel, unit are milliampere (mA/ every square centimeter
cm2), the longitudinal axis indicates that the luminous efficiency E of organic light emitting display panel, unit are every ampere of candela (cd/A).Referring to Fig. 2 c,
Under identical current density, J, the luminous efficiency E of organic light emitting display panel D provided in an embodiment of the present invention is apparently higher than existing
Organic light emitting display panel C luminous efficiency E.It is organic that this illustrates that setting electron transfer layer 14 contributes positively to be promoted comprising ytterbium
The performance of light emitting display panel.
In Fig. 2 d, horizontal axis indicates that the operating time of organic light emitting display panel, unit are hour (h).The longitudinal axis indicates organic
Light emitting display panel light emission luminance L and original intensity L0Ratio.Referring to Fig. 2 d, organic light emitting display panel D's is bright after improvement
L is spent from original intensity L0(corresponding ordinate is 100) decays to original intensity L075% (corresponding ordinate be 75) this process
In, the operating time of organic light emitting display panel D provided in an embodiment of the present invention is approximately equal to 370h, and existing organic light emission is aobvious
Show that panel C operating times are approximately equal to 160h.Obviously, organic light emitting display panel D operating times ratio provided in an embodiment of the present invention
Existing organic light emitting display panel C operating times are grown more.This explanation is relative to existing organic light emitting display panel C, originally
The organic light emitting display panel D longer life expectancy that inventive embodiments provide.In other words, setting electron transfer layer 14 includes ytterbium has really
Help extend the service life of organic light emitting display panel.
Fig. 3 a- Fig. 3 c are the performance parameter comparison diagram of organic light emitting display panel provided in an embodiment of the present invention, wherein F
The organic light emitting display panel that volume fraction for ytterbium in electron transfer layer 14 is 1%, G are the volume of ytterbium in electron transfer layer 14
The organic light emitting display panel that score is 3%, H is the organic light emitting display that the volume fraction of ytterbium in electron transfer layer 14 is 5%
Panel, J are the organic light emitting display panel that the volume fraction of ytterbium in electron transfer layer 14 is 7%, and K is ytterbium in electron transfer layer 14
Volume fraction be 9% organic light emitting display panel.
In Fig. 3 a, horizontal axis indicates that the current density, J of organic light emitting display panel, unit are milliampere (mA/ every square centimeter
cm2), the longitudinal axis indicates that the bias voltage U applied in organic light emitting display panel, unit are volt (V).It can be sent out from Fig. 3 a
It is existing, under identical current density, J, sequence of each organic light emitting display panel according to the bias voltage U applied from low to high
Arrangement, result are：Organic light emitting display panel G ＜ organic light emitting display panel F ＜ organic light emitting display panel H ＜ organic light emissions
Display panel J ＜ organic light emitting display panels K.
In Fig. 3 b, horizontal axis indicates that the current density, J of organic light emitting display panel, unit are milliampere (mA/ every square centimeter
cm2), the longitudinal axis indicates that the luminous efficiency E of organic light emitting display panel, unit are every ampere of candela (cd/A).Referring to Fig. 3 b,
Under identical current density, J, each organic light emitting display panel being ranked sequentially from high to low according to luminous efficiency E, result is：Have
Machine light emitting display panel G ＞ organic light emitting display panel F ＞ organic light emitting display panel H ＞ organic light emitting display panel J ＞ have
Machine light emitting display panel K.
In Fig. 3 c, horizontal axis indicates that the operating time of organic light emitting display panel, unit are hour (h), and the longitudinal axis indicates organic
Light emitting display panel light emission luminance L and original intensity L0Ratio.Referring to Fig. 3 c, organic light emitting display panel light emission luminance L with
Original intensity L0Ratio it is identical when, organic light emitting display panel G, organic light emitting display panel F and organic light emitting display face
The operating time of plate H is considerably longer than the operating time of organic light emitting display panel J or organic light emitting display panel K.
To sum up illustrate, ytterbium content is different in transport layer 14 in organic light emitting display panel, the property of organic light emitting display panel
There can be certain difference., can be according to the performance requirement of organic light emitting display panel to be produced in specific setting, it is suitable to choose
Ytterbium volume fraction values.Optionally, volume fraction≤3% of ytterbium is set, in conjunction with Fig. 3 a- Fig. 3 c, it will be understood that be arranged in this way
Can significantly more efficient reduction Schottky barrier, the injectability of electronics is improved, to promote to be carried in organic light emitting display panel
The balance for flowing son, improves the performance of organic light emitting display panel.
With continued reference to Fig. 1, when specifically used, after light is formed at organic luminous layer 13, through light extraction lateral electrode (second
Electrode 12) outgoing.If it includes light coupling layer 20 to consider organic light emitting display panel not, light is by light extraction lateral electrode (second electrode
12) process being injected into air, substantially light are injected into the process of optically thinner medium by optically denser medium, and light is in light emission side
The transmitance for the light that the interface of electrode (second electrode 12) and air easily reflects, and then makes is low.Present techniques side
The essence of light coupling layer 20 is arranged in case is, changes the refractive index in the face that organic light emitting display panel light emission side is contacted with air,
To inhibit the reflection of light, and then improve the light transmittance of light.
Studies have shown that light extraction lateral electrode away from organic luminous layer 13 side deposit light coupling layer 20, can make from
The light transmittance for the light that light extraction lateral electrode is sent out at least promotes 10%.This external sediment has the square of the light extraction lateral electrode of light coupling layer 20
The square resistance that resistance ratio does not deposit the light extraction lateral electrode of light coupling layer 20 at least reduces 0.2 Ω/.
When specifically used, there are many materials that can be used as light coupling layer 20, for example, the structure of the material of light coupling layer 20
The general formula of formula is
Its
In, Ar1、Ar2、Ar3And Ar4For aromatic group, R1-R28For alkane group or aromatic group, A is organic group.It is exemplary
The material on ground, the light coupling layer 20 can be：
Further, the thickness of the light coupling layer 20 can be that any number can be according to be produced in specific setting
Organic light emitting display panel performance requirement depending on.
Fig. 4 a are the refractive index of light coupling layer 20 with the variation relation figure of 20 thickness of light coupling layer.Wherein, horizontal axis indicates
The thickness of light coupling layer 20, unit are nanometer (nm), and the longitudinal axis indicates the refractive index of light coupling layer 20.Referring to Fig. 4 a, work as optical coupling
Layer 20 thickness beWhen, the refractive index of light coupling layer 20 tends towards stability.
Fig. 4 b are variation relation figure of 20 extinction coefficient of light coupling layer with 20 thickness of light coupling layer.Wherein, horizontal axis indicates
The thickness of light coupling layer 20, unit are nanometer (nm), and the longitudinal axis indicates the extinction coefficient of light coupling layer 20.Extinction coefficient can reflect
For the light coupling layer 20 to the absorbing state of light, extinction coefficient is bigger, and the light coupling layer 20 is more to the absorption of light.Referring to figure
4b, when the thickness of light coupling layer 20 isWhen, the extinction coefficient of the light coupling layer 20 tends towards stability.
In conjunction with Fig. 4 a and Fig. 4 b, optionally, the thickness of setting light coupling layer 20 is
Fig. 5 is the light penetration of organic light emitting display panel provided in an embodiment of the present invention with the thickness of light coupling layer 20
Variation relation figure.Wherein, horizontal axis indicates that the thickness of light coupling layer 20, unit are nanometer (nm), and the longitudinal axis indicates that organic light emission is aobvious
Show the transmitance T% of panel light emission side light.Referring to Fig. 5, although the thickness with light coupling layer 20 gradually increases, light
Transmitance slightly reduces, but in the range of error allows.In general, when the thickness of light coupling layer 20 exists
In the range of when, the light penetration of the organic light emitting display panel is ideal.
In order to enable the preferable display effect that organic light emitting display panel has, optionally, the transmission of light extraction lateral electrode
Rate is 30%-50%.Light extraction lateral electrode and transmitance >=65% after the overlapping of light coupling layer 20.
Fig. 6 a and Fig. 6 b are the performance parameter curve graph of organic light emitting display panel provided in an embodiment of the present invention.Fig. 6 a and
In Fig. 6 b, L is that the volume fraction of ytterbium in electron transfer layer 14 is 1% and includes the organic light emitting display panel of light coupling layer 20, M
Volume fraction for ytterbium in electron transfer layer 14 is 3% and includes the organic light emitting display panel of light coupling layer 20, and N passes for electronics
The volume fraction of ytterbium is 5% and includes the organic light emitting display panel of light coupling layer 20 in defeated layer 14, and P is in electron transfer layer 14
The volume fraction of ytterbium is 10% and includes the organic light emitting display panel of light coupling layer 20.
In Fig. 6 a, horizontal axis indicates that the wavelength for the light that organic light emitting display panel is sent out, unit are nanometer (nm), longitudinal axis table
Show the transmitance T% of organic light emitting display panel light emission side light.From Fig. 6 a it can be found that with ytterbium in electron transfer layer 14
There is a degree of decline in the transmitance of the continuous improvement of volume fraction, organic light emitting display panel.
In Fig. 6 b, horizontal axis indicates that different organic light emitting display panels, the longitudinal axis indicate organic light emitting display panel light emission side
The square resistance of electrode and optical coupling material layer, unit are ohms per square (Ω/).From Fig. 6 b it can be found that having with remaining
Machine light emitting display panel is compared, and the volume fraction of ytterbium is 3% and includes the organic light emission of light coupling layer 20 in electron transfer layer 14
The square resistance of display panel M is minimum, this is conducive to the required bias voltage for reducing organic light emitting display panel.In fact,
The square resistance of the organic light emitting display panel is only the half of existing organic light emitting display panel square resistance.
Above-mentioned data illustrate again, choose volume fraction≤3% of ytterbium, and add in organic light emitting display panel light emission side
Light coupling layer 20 can effectively improve the light penetration of organic light emitting display panel, reduce the inclined of organic light emitting display panel
Voltage is set, the performance of organic light emitting display panel is improved.
Fig. 7 is the structural schematic diagram of another organic light emitting display panel provided in an embodiment of the present invention.Illustratively, such as
Shown in Fig. 7, which only regard second electrode 12 as light extraction lateral electrode, light shape at organic luminous layer 13
Cheng Hou is emitted through electron transfer layer 14 and second electrode 12.Specifically, first electrode 11 can include that the first conductive, transparent is thin
Film 111, the second transparent conductive film 112 and between the first transparent conductive film 111 and the second transparent conductive film 112
Reflectance coating 113, the material of second electrode 12 can be the alloy of silver or argentiferous.Optionally, in specific design, first electrode
The material and thickness of 11 each film layer can there are many, as long as can ensure that first electrode 11 have good Hole injection capacity with
And good reflecting effect.For example, the first transparent conductive film 111 and the second transparent conductive film in first electrode 11
112 materials can be tin indium oxide or indium zinc oxide, and the material of reflectance coating 113 can be the alloy of silver or argentiferous, reflectance coating
113 thickness can be 50nm-150nm.The thickness of second electrode 12 can there are many, as long as can ensure that second electrode 12 has
Good electron injection ability and good light penetration.For example, the material of second electrode 12 can be argentiferous
Alloy, wherein percent by volume >=80% of silver, the thickness of second electrode 12 can be 10nm-20nm.
Fig. 8 is the structural schematic diagram of another organic light emitting display panel provided in an embodiment of the present invention.It, should referring to Fig. 8
Organic light emitting display panel only regard first electrode 11 as light extraction lateral electrode, after light is formed at organic luminous layer 13, through the
One electrode 11 is emitted.Specifically, the material of first electrode 11 is conductive transparent material, the material of second electrode 12 can be silver or
The alloy of person's argentiferous.Optionally, in specific design, the material and thickness of first electrode 11 can there are many, as long as can ensure that
First electrode 11 has good Hole injection capacity and good light penetration.For example, constituting first electrode 11
Transparent conductive film material can be tin indium oxide or indium zinc oxide.The thickness of second electrode 12 can there are many, as long as energy
Ensure that second electrode 12 has good electron injection ability and good reflecting effect.For example, second electrode 12
Material can be the alloy of argentiferous, wherein percent by volume >=80% of silver, the thickness of second electrode 12 can be 50nm-
150nm。
Based on the above technical solution, the material of organic luminous layer 13 can include red emitting material, green light hair
Luminescent material and blue light emitting material.When in use, optionally, red emitting material is sent out light, green light luminescent material are sent out
The light that light and blue light emitting material are sent out is mixed to get white light.
Further, referring to Fig. 9, which can also include color blocking layer 15, and color blocking layer 15 is set to
The light emission side of organic light emitting display panel, so that the white light that organic light emitting display panel is sent out becomes colourama for 15 layers through color blocking.
Typically, red emitting material and green light luminescent material can include phosphor material, and blue light emitting material can wrap
Containing fluorescent material.Wherein, fluorescent material can include thermal activities delayed fluorescence material.
Figure 10 is another organic light emitting display panel that present invention implementation provides, referring to Figure 10, the organic light emitting display
Panel can also include hole transmission layer 16, and hole transmission layer 16 is between first electrode 11 and organic luminous layer 13.
It should be noted that each organic luminous panel provided by the present application is during making, and it can be on substrate, first shape
At first electrode 11, each film layer between first electrode 11 and second electrode 12 is then sequentially formed, until eventually forming
Second electrode 12；It can also be initially formed second electrode 12 on substrate, then sequentially formed positioned at first electrode 11 and the second electricity
Each film layer between pole 12, until eventually forming first electrode 11, i.e. organic light emitting display panel can also be inverted structure.
The embodiment of the present invention additionally provides a kind of organic light-emitting display device.Figure 11 is one kind provided in an embodiment of the present invention
The structural schematic diagram of organic light-emitting display device, referring to Figure 11, which carries including the embodiment of the present invention
Any one organic light emitting display panel supplied.The organic light-emitting display device is specifically as follows mobile phone, laptop, intelligence
Wearable device and the information enquiry machine etc. of saloon.
Organic light-emitting display device provided in an embodiment of the present invention includes ytterbium, and the volume of ytterbium by the way that electron transfer layer is arranged
Score≤3%, the interface energy barrier solved in existing organic light emitting display panel between electron transfer layer and cathode is excessively high, organic
The low problem of light emitting display panel performance realizes the interface reduced between organic light emitting display panel electron transfer layer and cathode
Energy barrier improves the purpose of electron injection ability and organic light emitting display panel performance.In addition the embodiment of the present invention is by having
Light coupling layer is added in machine light emitting display panel, can effectively improve the light penetration of organic light emitting display panel, Ke Yijin
One step improves the performance of organic light emitting display panel.
Note that above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The present invention is not limited to specific embodiments described here, can carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out to the present invention by above example
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
May include other more equivalent embodiments, and the scope of the present invention is determined by scope of the appended claims.
Claims (13)
1. a kind of organic light emitting display panel, which is characterized in that including：
The first electrode and second electrode being stacked, the second electrode are light extraction lateral electrode；
Organic luminous layer, between the first electrode and the second electrode；
Electron transfer layer, between the organic luminous layer and the second electrode, wherein the electron transfer layer includes ytterbium,
And volume fraction≤3% of the ytterbium；
Light coupling layer is located at the side that the light extraction lateral electrode deviates from the organic luminous layer；
The transmitance of the light extraction lateral electrode is 30%-50%；
The light extraction lateral electrode and transmitance >=65% after light coupling layer overlapping.
2. organic light emitting display panel according to claim 1, which is characterized in that the structure of the material of the light coupling layer
General formula is
Wherein,
Ar1、Ar2、Ar3And Ar4For aromatic group, R1-R28 is alkane group or aromatic group, and A is organic group.
3. organic light emitting display panel according to claim 1, which is characterized in that the thickness of the light coupling layer is
4. organic light emitting display panel according to claim 1, which is characterized in that
The second electrode is light extraction lateral electrode, and the material of the second electrode is the alloy of silver or argentiferous；
The first electrode is thin comprising the first transparent conductive film, the second transparent conductive film and positioned at first conductive, transparent
Reflectance coating between film and second transparent conductive film.
5. organic light emitting display panel according to claim 4, which is characterized in that
First transparent conductive film described in the first electrode and the second transparent conductive film material be tin indium oxide or
Indium zinc oxide, the material of the reflectance coating are the alloy of silver or argentiferous, and the thickness of the reflectance coating is 50nm-150nm.
6. organic light emitting display panel according to claim 4, which is characterized in that
The material of the second electrode is the alloy of argentiferous, wherein percent by volume >=80% of silver, the thickness of the second electrode
Degree is 10nm-20nm.
7. organic light emitting display panel according to claim 1, which is characterized in that the material of the organic luminous layer includes
Red emitting material, green light luminescent material and blue light emitting material.
8. organic light emitting display panel according to claim 7, which is characterized in that the red emitting material was sent out
The light that the light and blue light emitting material that light, green light luminescent material are sent out are sent out is mixed to get white light.
9. organic light emitting display panel according to claim 8, which is characterized in that further include color blocking layer, the color blocking layer
It is set to the light emission side of the organic light emitting display panel, so that the white light that the organic light emitting display panel is sent out is through color blocking layer
Become colourama.
10. organic light emitting display panel according to claim 7, which is characterized in that the red emitting material and described
Green light luminescent material includes phosphor material, and the blue light emitting material includes fluorescent material.
11. organic light emitting display panel according to claim 10, which is characterized in that the fluorescent material includes thermal activities
Delayed fluorescence material.
12. organic light emitting display panel according to claim 1, which is characterized in that further include hole transmission layer, the sky
Cave transport layer is between the first electrode and the organic luminous layer.
13. a kind of organic light-emitting display device, which is characterized in that aobvious including claim 1-12 any one of them organic light emissions
Show panel.
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| CN201611152979.XA CN106654029B (en) | 2016-12-14 | 2016-12-14 | A kind of organic light emitting display panel and device |
| US15/459,605 US20170187003A1 (en) | 2016-12-14 | 2017-03-15 | Organic light-emitting diode (oled) display panel and display apparatus |
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| CN201611152979.XA CN106654029B (en) | 2016-12-14 | 2016-12-14 | A kind of organic light emitting display panel and device |
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| CN107482130B (en) * | 2017-08-02 | 2020-05-26 | 京东方科技集团股份有限公司 | Organic light-emitting panel, method for manufacturing same, and organic light-emitting device |
| US12114519B2 (en) * | 2019-02-21 | 2024-10-08 | Sharp Kabushiki Kaisha | Light-emitting element and display device |
| US11430969B2 (en) * | 2019-08-28 | 2022-08-30 | Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Electroluminescent component having metal layer disposed between two of optical coupling layers and display device having the same |
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| CN1961617A (en) * | 2004-03-29 | 2007-05-09 | 富士胶片株式会社 | Organic electroluminescent device, process for fabricating the same and display |
| WO2008135891A1 (en) * | 2007-05-02 | 2008-11-13 | Philips Intellectual Property & Standards Gmbh | Organic light emitting diode device |
| US8179034B2 (en) * | 2007-07-13 | 2012-05-15 | 3M Innovative Properties Company | Light extraction film for organic light emitting diode display and lighting devices |
| CN103346267A (en) * | 2013-06-24 | 2013-10-09 | 中国科学院长春光学精密机械与物理研究所 | Active matrix organic electroluminescence display device |
| CN103594659A (en) * | 2012-08-17 | 2014-02-19 | 海洋王照明科技股份有限公司 | Organic electroluminescent device and preparation method thereof |
| CN103715372A (en) * | 2013-12-26 | 2014-04-09 | 京东方科技集团股份有限公司 | Oled display panel and manufacturing method thereof |
-
2016
- 2016-12-14 CN CN201611152979.XA patent/CN106654029B/en active Active
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2017
- 2017-03-15 US US15/459,605 patent/US20170187003A1/en not_active Abandoned
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|---|---|---|---|---|
| CN1961617A (en) * | 2004-03-29 | 2007-05-09 | 富士胶片株式会社 | Organic electroluminescent device, process for fabricating the same and display |
| WO2008135891A1 (en) * | 2007-05-02 | 2008-11-13 | Philips Intellectual Property & Standards Gmbh | Organic light emitting diode device |
| US8179034B2 (en) * | 2007-07-13 | 2012-05-15 | 3M Innovative Properties Company | Light extraction film for organic light emitting diode display and lighting devices |
| CN103594659A (en) * | 2012-08-17 | 2014-02-19 | 海洋王照明科技股份有限公司 | Organic electroluminescent device and preparation method thereof |
| CN103346267A (en) * | 2013-06-24 | 2013-10-09 | 中国科学院长春光学精密机械与物理研究所 | Active matrix organic electroluminescence display device |
| CN103715372A (en) * | 2013-12-26 | 2014-04-09 | 京东方科技集团股份有限公司 | Oled display panel and manufacturing method thereof |
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| US20170187003A1 (en) | 2017-06-29 |
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Effective date of registration: 20211027 Address after: No.8, liufangyuan Henglu, Donghu New Technology Development Zone, Wuhan City, Hubei Province Patentee after: WUHAN TIANMA MICROELECTRONICS Co.,Ltd. Patentee after: Wuhan Tianma Microelectronics Co.,Ltd. Shanghai Branch Patentee after: Tianma Micro-Electronics Co.,Ltd. Address before: Room 509, building 1, No. 6111, Longdong Avenue, Pudong New Area, Shanghai, 200120 Patentee before: SHANGHAI TIANMA AM-OLED Co.,Ltd. Patentee before: Tianma Micro-Electronics Co.,Ltd. |